-/* Copyright (C) 2008-2012 Free Software Foundation, Inc.
+/* Copyright (C) 2008-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "command.h"
#include "gdbcmd.h"
#include "gdbthread.h"
+#include "objfiles.h"
+#include "symfile.h"
+#include "coff-pe-read.h"
+#include "gdb_bfd.h"
+#include "complaints.h"
+#include "solib.h"
+#include "solib-target.h"
+#include "gdbcore.h"
+
+/* Windows signal numbers differ between MinGW flavors and between
+ those and Cygwin. The below enumeration was gleaned from the
+ respective headers; the ones marked with MinGW64/Cygwin are defined
+ only by MinGW64 and Cygwin, not by mingw.org's MinGW. FIXME: We
+ should really have distinct MinGW vs Cygwin OSABIs, and two
+ separate enums, selected at runtime. */
+
+enum
+ {
+ WINDOWS_SIGHUP = 1, /* MinGW64/Cygwin */
+ WINDOWS_SIGINT = 2,
+ WINDOWS_SIGQUIT = 3, /* MinGW64/Cygwin */
+ WINDOWS_SIGILL = 4,
+ WINDOWS_SIGTRAP = 5, /* MinGW64/Cygwin */
+#ifdef __CYGWIN__
+ WINDOWS_SIGABRT = 6,
+#else
+ WINDOWS_SIGIOT = 6, /* MinGW64 */
+#endif
+ WINDOWS_SIGEMT = 7, /* MinGW64/Cygwin */
+ WINDOWS_SIGFPE = 8,
+ WINDOWS_SIGKILL = 9, /* MinGW64/Cygwin */
+ WINDOWS_SIGBUS = 10, /* MinGW64/Cygwin */
+ WINDOWS_SIGSEGV = 11,
+ WINDOWS_SIGSYS = 12, /* MinGW64/Cygwin */
+ WINDOWS_SIGPIPE = 13,/* MinGW64/Cygwin */
+ WINDOWS_SIGALRM = 14,/* MinGW64/Cygwin */
+ WINDOWS_SIGTERM = 15,
+#ifdef __CYGWIN__
+ WINDOWS_SIGURG = 16,
+ WINDOWS_SIGSTOP = 17,
+ WINDOWS_SIGTSTP = 18,
+ WINDOWS_SIGCONT = 19,
+ WINDOWS_SIGCHLD = 20,
+ WINDOWS_SIGTTIN = 21,
+ WINDOWS_SIGTTOU = 22,
+ WINDOWS_SIGIO = 23,
+ WINDOWS_SIGXCPU = 24,
+ WINDOWS_SIGXFSZ = 25,
+ WINDOWS_SIGVTALRM = 26,
+ WINDOWS_SIGPROF = 27,
+ WINDOWS_SIGWINCH = 28,
+ WINDOWS_SIGLOST = 29,
+ WINDOWS_SIGUSR1 = 30,
+ WINDOWS_SIGUSR2 = 31
+#else
+ WINDOWS_SIGBREAK = 21,
+ WINDOWS_SIGABRT = 22
+#endif
+ };
struct cmd_list_element *info_w32_cmdlist;
sizeof (thread_information_64) / sizeof (uint64_t);
static const int FULL_TIB_SIZE = 0x1000;
-static int maint_display_all_tib = 0;
+static bool maint_display_all_tib = false;
/* Define Thread Local Base pointer type. */
static struct type *last_tlb_type = NULL;
struct type *dword_ptr_type, *dword32_type, *void_ptr_type;
struct type *peb_ldr_type, *peb_ldr_ptr_type;
- struct type *peb_type, *peb_ptr_type, *list_type, *list_ptr_type;
+ struct type *peb_type, *peb_ptr_type, *list_type;
struct type *module_list_ptr_type;
struct type *tib_type, *seh_type, *tib_ptr_type, *seh_ptr_type;
list_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT);
TYPE_NAME (list_type) = xstrdup ("list");
- list_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
- TYPE_LENGTH (void_ptr_type), NULL);
-
module_list_ptr_type = void_ptr_type;
append_composite_type_field (list_type, "forward_list",
TYPE_NAME (seh_type) = xstrdup ("seh");
seh_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
- TYPE_LENGTH (void_ptr_type), NULL);
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
TYPE_TARGET_TYPE (seh_ptr_type) = seh_type;
append_composite_type_field (seh_type, "next_seh", seh_ptr_type);
append_composite_type_field (peb_ldr_type, "entry_in_progress",
void_ptr_type);
peb_ldr_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
- TYPE_LENGTH (void_ptr_type), NULL);
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
TYPE_TARGET_TYPE (peb_ldr_ptr_type) = peb_ldr_type;
append_composite_type_field (peb_type, "process_heap", void_ptr_type);
append_composite_type_field (peb_type, "fast_peb_lock", void_ptr_type);
peb_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
- TYPE_LENGTH (void_ptr_type), NULL);
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
TYPE_TARGET_TYPE (peb_ptr_type) = peb_type;
append_composite_type_field (tib_type, "last_error_number", dword_ptr_type);
tib_ptr_type = arch_type (gdbarch, TYPE_CODE_PTR,
- TYPE_LENGTH (void_ptr_type), NULL);
+ TYPE_LENGTH (void_ptr_type) * TARGET_CHAR_BIT,
+ NULL);
TYPE_TARGET_TYPE (tib_ptr_type) = tib_type;
last_tlb_type = tib_ptr_type;
if there's no object available. */
static struct value *
-tlb_make_value (struct gdbarch *gdbarch, struct internalvar *var)
+tlb_make_value (struct gdbarch *gdbarch, struct internalvar *var, void *ignore)
{
- if (target_has_stack && !ptid_equal (inferior_ptid, null_ptid))
+ if (target_has_stack && inferior_ptid != null_ptid)
{
struct type *type = windows_get_tlb_type (gdbarch);
return allocate_computed_value (type, &tlb_value_funcs, NULL);
gdb_byte *index;
CORE_ADDR thread_local_base;
ULONGEST i, val, max, max_name, size, tib_size;
- ULONGEST sizeof_ptr = gdbarch_ptr_bit (target_gdbarch);
- enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
+ ULONGEST sizeof_ptr = gdbarch_ptr_bit (target_gdbarch ());
+ enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
if (sizeof_ptr == 64)
{
max = tib_size / size;
}
- tib = alloca (tib_size);
+ tib = (gdb_byte *) alloca (tib_size);
if (target_get_tib_address (ptid, &thread_local_base) == 0)
{
printf_filtered (_("Unable to get thread local base for %s\n"),
- target_pid_to_str (ptid));
+ target_pid_to_str (ptid).c_str ());
return -1;
}
- if (target_read (¤t_target, TARGET_OBJECT_MEMORY,
+ if (target_read (current_top_target (), TARGET_OBJECT_MEMORY,
NULL, tib, thread_local_base, tib_size) != tib_size)
{
printf_filtered (_("Unable to read thread information "
"block for %s at address %s\n"),
- target_pid_to_str (ptid),
- paddress (target_gdbarch, thread_local_base));
+ target_pid_to_str (ptid).c_str (),
+ paddress (target_gdbarch (), thread_local_base));
return -1;
}
printf_filtered (_("Thread Information Block %s at %s\n"),
- target_pid_to_str (ptid),
- paddress (target_gdbarch, thread_local_base));
+ target_pid_to_str (ptid).c_str (),
+ paddress (target_gdbarch (), thread_local_base));
index = (gdb_byte *) tib;
return 1;
}
-/* Display thread information block of a thread specified by ARGS.
- If ARGS is empty, display thread information block of current_thread
- if current_thread is non NULL.
- Otherwise ARGS is parsed and converted to a integer that should
- be the windows ThreadID (not the internal GDB thread ID). */
+/* Display thread information block of the current thread. */
static void
-display_tib (char * args, int from_tty)
+display_tib (const char * args, int from_tty)
{
- if (args)
- {
- struct thread_info *tp;
- int gdb_id = value_as_long (parse_and_eval (args));
-
- tp = find_thread_id (gdb_id);
-
- if (!tp)
- error (_("Thread ID %d not known."), gdb_id);
-
- if (!target_thread_alive (tp->ptid))
- error (_("Thread ID %d has terminated."), gdb_id);
-
- display_one_tib (tp->ptid);
- }
- else if (!ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid != null_ptid)
display_one_tib (inferior_ptid);
}
windows_xfer_shared_library (const char* so_name, CORE_ADDR load_addr,
struct gdbarch *gdbarch, struct obstack *obstack)
{
- char *p;
+ CORE_ADDR text_offset;
+
obstack_grow_str (obstack, "<library name=\"");
- p = xml_escape_text (so_name);
- obstack_grow_str (obstack, p);
- xfree (p);
+ std::string p = xml_escape_text (so_name);
+ obstack_grow_str (obstack, p.c_str ());
obstack_grow_str (obstack, "\"><segment address=\"");
- /* The symbols in a dll are offset by 0x1000, which is the
- offset from 0 of the first byte in an image - because of the file
- header and the section alignment. */
- obstack_grow_str (obstack, paddress (gdbarch, load_addr + 0x1000));
+ gdb_bfd_ref_ptr dll (gdb_bfd_open (so_name, gnutarget, -1));
+ /* The following calls are OK even if dll is NULL.
+ The default value 0x1000 is returned by pe_text_section_offset
+ in that case. */
+ text_offset = pe_text_section_offset (dll.get ());
+ obstack_grow_str (obstack, paddress (gdbarch, load_addr + text_offset));
obstack_grow_str (obstack, "\"/></library>");
}
+/* Implement the "iterate_over_objfiles_in_search_order" gdbarch
+ method. It searches all objfiles, starting with CURRENT_OBJFILE
+ first (if not NULL).
+
+ On Windows, the system behaves a little differently when two
+ objfiles each define a global symbol using the same name, compared
+ to other platforms such as GNU/Linux for instance. On GNU/Linux,
+ all instances of the symbol effectively get merged into a single
+ one, but on Windows, they remain distinct.
+
+ As a result, it usually makes sense to start global symbol searches
+ with the current objfile before expanding it to all other objfiles.
+ This helps for instance when a user debugs some code in a DLL that
+ refers to a global variable defined inside that DLL. When trying
+ to print the value of that global variable, it would be unhelpful
+ to print the value of another global variable defined with the same
+ name, but in a different DLL. */
+
+static void
+windows_iterate_over_objfiles_in_search_order
+ (struct gdbarch *gdbarch,
+ iterate_over_objfiles_in_search_order_cb_ftype *cb,
+ void *cb_data, struct objfile *current_objfile)
+{
+ int stop;
+
+ if (current_objfile)
+ {
+ stop = cb (current_objfile, cb_data);
+ if (stop)
+ return;
+ }
+
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ if (objfile != current_objfile)
+ {
+ stop = cb (objfile, cb_data);
+ if (stop)
+ return;
+ }
+ }
+}
+
static void
show_maint_show_all_tib (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
}
static void
-info_w32_command (char *args, int from_tty)
+info_w32_command (const char *args, int from_tty)
{
help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
}
}
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern initialize_file_ftype _initialize_windows_tdep;
+/* Implementation of `gdbarch_gdb_signal_to_target'. */
+
+static int
+windows_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal)
+{
+ switch (signal)
+ {
+ case GDB_SIGNAL_0:
+ return 0;
+ case GDB_SIGNAL_HUP:
+ return WINDOWS_SIGHUP;
+ case GDB_SIGNAL_INT:
+ return WINDOWS_SIGINT;
+ case GDB_SIGNAL_QUIT:
+ return WINDOWS_SIGQUIT;
+ case GDB_SIGNAL_ILL:
+ return WINDOWS_SIGILL;
+ case GDB_SIGNAL_TRAP:
+ return WINDOWS_SIGTRAP;
+ case GDB_SIGNAL_ABRT:
+ return WINDOWS_SIGABRT;
+ case GDB_SIGNAL_EMT:
+ return WINDOWS_SIGEMT;
+ case GDB_SIGNAL_FPE:
+ return WINDOWS_SIGFPE;
+ case GDB_SIGNAL_KILL:
+ return WINDOWS_SIGKILL;
+ case GDB_SIGNAL_BUS:
+ return WINDOWS_SIGBUS;
+ case GDB_SIGNAL_SEGV:
+ return WINDOWS_SIGSEGV;
+ case GDB_SIGNAL_SYS:
+ return WINDOWS_SIGSYS;
+ case GDB_SIGNAL_PIPE:
+ return WINDOWS_SIGPIPE;
+ case GDB_SIGNAL_ALRM:
+ return WINDOWS_SIGALRM;
+ case GDB_SIGNAL_TERM:
+ return WINDOWS_SIGTERM;
+#ifdef __CYGWIN__
+ case GDB_SIGNAL_URG:
+ return WINDOWS_SIGURG;
+ case GDB_SIGNAL_STOP:
+ return WINDOWS_SIGSTOP;
+ case GDB_SIGNAL_TSTP:
+ return WINDOWS_SIGTSTP;
+ case GDB_SIGNAL_CONT:
+ return WINDOWS_SIGCONT;
+ case GDB_SIGNAL_CHLD:
+ return WINDOWS_SIGCHLD;
+ case GDB_SIGNAL_TTIN:
+ return WINDOWS_SIGTTIN;
+ case GDB_SIGNAL_TTOU:
+ return WINDOWS_SIGTTOU;
+ case GDB_SIGNAL_IO:
+ return WINDOWS_SIGIO;
+ case GDB_SIGNAL_XCPU:
+ return WINDOWS_SIGXCPU;
+ case GDB_SIGNAL_XFSZ:
+ return WINDOWS_SIGXFSZ;
+ case GDB_SIGNAL_VTALRM:
+ return WINDOWS_SIGVTALRM;
+ case GDB_SIGNAL_PROF:
+ return WINDOWS_SIGPROF;
+ case GDB_SIGNAL_WINCH:
+ return WINDOWS_SIGWINCH;
+ case GDB_SIGNAL_PWR:
+ return WINDOWS_SIGLOST;
+ case GDB_SIGNAL_USR1:
+ return WINDOWS_SIGUSR1;
+ case GDB_SIGNAL_USR2:
+ return WINDOWS_SIGUSR2;
+#endif /* __CYGWIN__ */
+ }
+ return -1;
+}
+
+/* To be called from the various GDB_OSABI_CYGWIN handlers for the
+ various Windows architectures and machine types. */
+
+void
+windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ set_gdbarch_wchar_bit (gdbarch, 16);
+ set_gdbarch_wchar_signed (gdbarch, 0);
+
+ /* Canonical paths on this target look like
+ `c:\Program Files\Foo App\mydll.dll', for example. */
+ set_gdbarch_has_dos_based_file_system (gdbarch, 1);
+
+ set_gdbarch_iterate_over_objfiles_in_search_order
+ (gdbarch, windows_iterate_over_objfiles_in_search_order);
+
+ set_gdbarch_gdb_signal_to_target (gdbarch, windows_gdb_signal_to_target);
+
+ set_solib_ops (gdbarch, &solib_target_so_ops);
+}
+
+/* Implementation of `tlb' variable. */
+
+static const struct internalvar_funcs tlb_funcs =
+{
+ tlb_make_value,
+ NULL,
+ NULL
+};
void
_initialize_windows_tdep (void)
value with a void typed value, and when we get here, gdbarch
isn't initialized yet. At this point, we're quite sure there
isn't another convenience variable of the same name. */
- create_internalvar_type_lazy ("_tlb", tlb_make_value);
+ create_internalvar_type_lazy ("_tlb", &tlb_funcs, NULL);
}
projects / deliverable / binutils-gdb.git / blobdiff